UCMP Locality V4932 (Miocene of Colombia)

Also known as Megadolodus railway; Railway Bridge Locality; V-4932

Where: Huila, Colombia (3.3° N, 75.2° W)

• Paleocoordinates: 4.1° N, 71.6° W (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Laventan mammal zone, Honda Group, Laventan (13.8 - 11.0 Ma)

• San Nicolas unit, Honda group

•

•upper levels of the La Victoria Formation and lower levels of the Villavieja Formation

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; concretionary, nodular, gray, calcareous claystone

• Variegated gray, buff, and rusty claystones containing much calcareous material, including nodules and concretions

Size class: macrofossils

Reposited in the UCMP

Primary reference: M. McKenna. 1956. Survival of primitive Notoungulates and Condylarths into the Miocene of Colombia. American Journal of Science 254:736-743 [C. Jaramillo/M. Vallejo/A. Cardenas ]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133693: authorized by Carlos Jaramillo, entered by Maria Vallejo on 25.09.2012, edited by Laura Mora-Rojas and Philip Mannion

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Astrapotheria - Astrapotheriidae
Xenastrapotherium kraglievichi2
Xenastrapotherium kraglievichi2 Cabrera 1929 placental
UCMP 39818
 Notoungulata - Leontiniidae
Huilatherium pluripicatum7
Huilatherium pluripicatum7 Villarroel and Guerrero Diaz 1985 notoungulate
UCMP 39636
 Notoungulata - Toxodontidae
Pericotoxodon platignathus4
Pericotoxodon platignathus4 Madden 1997 notoungulate
UCMP 39549
 Notoungulata - Interatheriidae
Miocochilius anomopodus6
Miocochilius anomopodus6 Stirton 1953 notoungulate
UCMP 39276, 39651, 39891, 39942, 39943, 39945, 39946,
  - Mylodontidae
Mylodontidae indet.1, "Pseudoprepotherium confusum" = Magdalenabradys confusum1, Nematherium sp.5
Mylodontidae indet.1 Ameghino 1889 edentate
Scelidothere indet. UCMP 39547
"Pseudoprepotherium confusum" = Magdalenabradys confusum1 Hirschfeld 1985 edentate
Hirschfeld 1985, UCMP 39772, 39587, 39890, 39588, 39594
Nematherium sp.5 Ameghino 1887 edentate
Ameghino 1904, UCMP 39275
 Megatherioidea - Megatheriidae
Megatheriinae indet.1
Megatheriinae indet.1 Gill 1872 edentate
Gill 1872, UCMP 39593
 Panameriungulata - Proterotheriidae
Megadolodus molariformis
Megadolodus molariformis McKenna 1956 placental
McKenna 1956 Specimen U.C. 39270
 Rodentia - Dinomyidae
cf. Simplimus sp.8
cf. Simplimus sp.8 Ameghino 1904 caviomorph
Specimen nº UCMP 136479 This specimen was reported inside of Dinomyidae family
Reptilia
 Crocodylia - Alligatoridae
"Caiman neivensis" = Purussaurus neivensis3
"Caiman neivensis" = Purussaurus neivensis3 Mook 1941 crocodilian
Museo del Servicio Geologico in Bogota (skull)
1Hirschfeld 1985; 2Johnson and Madden 1997; 3Langston 1965; 4Madden 1997; 5Miño-Boilini and Brandoni 2023; 6Stirton 1953; 7Villarroel and Colwell Danis 1997; 8Walton 1997